ARLK074 follows
ARLK074 follows
ZCZC SK74
QST de W1AW
Keplerian Bulletin 74 ARLK074
From ARRL Headquarters
Newington, CT October 2, 2026
To all radio amateurs
SB KEP ARL ARLK074
ARLK074 Keplerian data
Special thanks to Space-track.org for the following Keplerian data.
Decode 2-line elsets with the following key:
1 AAAAAU 00 0 0 BBBBB.BBBBBBBB .CCCCCCCC 00000-0 00000-0 0 DDDZ
2 AAAAA EEE.EEEE FFF.FFFF GGGGGGG HHH.HHHH III.IIII JJ.JJJJJJJJKKKKKZ
KEY: A-CATALOGNUM B-EPOCHTIME C-DECAY D-ELSETNUM E-INCLINATION F-RAAN
G-ECCENTRICITY H-ARGPERIGEE I-MNANOM J-MNMOTION K-ORBITNUM Z-CHECKSUM
0 AO-7
1 07530U 74089B 26275.31327762 -.00000053 00000-0 -38719-4 0 9998
2 07530 101.9912 289.6780 0011945 287.4631 142.9145 12.53699839373948
0 ISS
1 25544U 98067A 26275.01380287 .00003738 00000-0 76743-4 0 9993
2 25544 51.6312 131.4121 0006946 211.9293 148.1275 15.48707684588318
0 SO-50
1 27607U 02058C 26274.89354402 .00000389 00000-0 63991-4 0 9995
2 27607 64.5522 158.7894 0070959 242.7918 116.5945 14.83236679280283
0 AO-73
1 39444U 13066AE 26274.86848185 .00004262 00000-0 25750-3 0 9995
2 39444 97.8416 248.7192 0034586 197.5398 162.4639 15.10757627695767
0 AO-91
1 43017U 17073E 26275.25272561 .00004907 00000-0 20999-3 0 9997
2 43017 97.4518 140.2802 0145547 318.9945 40.0414 15.14131893481588
0 PO-101
1 43678U 18084H 26275.25771088 .00000790 00000-0 67423-4 0 9991
2 43678 98.1153 116.1783 0012873 171.6728 188.4711 15.00767967432273
0 QO-100
1 43700U 18090A 26274.20669840 .00000143 00000-0 00000-0 0 9996
2 43700 0.0124 237.4244 0001266 334.5555 258.1863 1.00272059 28744
0 JO-97
1 43803U 18099AX 26274.72757625 .00011014 00000-0 30883-3 0 9999
2 43803 97.4002 338.1038 0004140 236.0238 124.0613 15.36754383429974
0 RS-44
1 44909U 19096E 26274.95459558 .00000007 00000-0 -83663-5 0 9991
2 44909 82.5163 268.7530 0216330 254.6764 103.0338 12.79749561316002
0 SONATE-2
1 59112U 24043Q 26274.93463072 .00043145 00000-0 39677-3 0 9998
2 59112 97.5639 72.6589 0005279 166.2012 193.9394 15.67558490144565
0 AO-123
1 61781U 24199AY 26275.23951641 .00005152 00000-0 14410-3 0 9997
2 61781 97.2809 142.9482 0011520 286.6450 73.3529 15.37050882150363
Keplerian bulletins are transmitted twice weekly from W1AW. The next scheduled transmission of these data will be Tuesday, October 6, 2026 at 2230z on Baudot and MFSK16.
NNNN
/EX
